[Fedora-packaging] Questions about dependencies in rpm packages

Hello I have been using this wonderfull Fedora distro since FC2 and I am currently using FC8 migrating soon to FC10 as soon as it becomes official at the end of the month One thing just started puzzling me is when I look at the list of dependencies of say BackupPC rpm -qp --requires BackupPC-3.0.0-3.fc8.noarch.rpm | sort | uniq -c | sort -n | tail 1 rsync 1 /usr/bin/perl 1 /usr/sbin/useradd 1 /usr/sbin/usermod 2 chkconfig 2 perl(Archive::Zip) 2 perl(Compress::Zlib) 2 perl(XML::RSS) 3 initscripts 5 /bin/sh why are some of these duplicated ? I can guess from the src.rpm file for initscripts that this comes from the lines: Requires(preun): initscripts, chkconfig Requires(post): initscripts, chkconfig, %{_sbindir}/usermod Requires(postun): initscripts but what about /bin/sh ?? Furthermore using a specific formating string like rpm -q -p --qf '[%{REQUIRENAME} %|REQUIREFLAGS?{%{REQUIREFLAGS:depflags} %{REQUIREVERSION}}:{}|\n]' BackupPC-3.0.0-3.fc8.noarch.rpm what should be the format string to potentially get the "differences" between all expressed dependencies Tried several choices but without much success Thanks for your time & help